joint probability density function造句

• The ica - based method without assumption that data follow normal distribution , can easily calculate the joint probability density function of independent components ( ics ) , because each of ics statistically independent
  采用独立分量分析的方法可以避免数据服从正态分布的假定，且由于各个独立成分之间统计独立，其联合概率密度函数可以很方便的求取。
• The main achievements are as follows : it is verified that there is an unique mean square solution to the stochastic surge model ; the formulas for probability density function of head loss and the maximum relative surge level were deduced ; the joint probability density function for solving surge process and the mean head process of simple hydraulic system were also derived
  主要研究成果有：证明了调压室涌浪随机模型存在唯一的均方解；推导出了水头损失和最大相对涌浪值的密度函数计算公式；求解了调压室涌浪解过程的联合密度函数和简单水力系统的水头均值过程等。